Optimization allocation of irrigation water resources based on crop water requirement under considering effective precipitation and uncertainty

2020 ◽  
Vol 239 ◽  
pp. 106264 ◽  
Author(s):  
Xinghui Gong ◽  
Hongbo Zhang ◽  
Chongfeng Ren ◽  
Dongyong Sun ◽  
Jiantao Yang
Keyword(s):  
Water Resources ◽  
Irrigation Water ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Crop Water ◽  
Effective Precipitation ◽  
Optimization Allocation

Irrigation Scheduling Based on Evaporation and Crop Water Requirement for Summer Peanuts1

1984 ◽  
Vol 11 (1) ◽  
pp. 4-6 ◽  
Author(s):  
D. K. Pahalwan ◽  
R. S. Tripathi
Keyword(s):  
Water Use ◽  
Irrigation Water ◽  
Irrigation Scheduling ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Pan Evaporation ◽  
Crop Water ◽  
Formation Stage ◽  
Evaporation Ratio ◽  
Pod Development

Abstract Field experiment was conducted during dry season of 1981 and 1982 to determine the optimal irrigation schedule for summer peanuts (Arachis hypogaea L.) in relation to evaporative demand and crop water requirement at different growth stages. It was observed that peanut crop requires a higher irrigation frequency schedule during pegging to pod formation stage followed by pod development to maturity and planting to flowering stages. The higher pod yield and water use efficiency was obtained when irrigations were scheduled at an irrigation water to the cumulative pan evaporation ratio of 0.5 during planting to flowering, 0.9 during pegging to pod formation and 0.7 during pod development to maturity stage. The profile water contribution to total crop water use was higher under less frequent irrigation schedules particularly when the irrigations were scheduled at 0.5 irrigation water to the cumulative pan evaporation ratio up to the pod formation stage.

Modeling of continental-scale crop water requirement and available water resources

2008 ◽  
Vol 6 (1) ◽  
pp. 55-71 ◽  
Author(s):  
Yasushi Ishigooka ◽  
Tsuneo Kuwagata ◽  
Shinkichi Goto ◽  
Hitoshi Toritani ◽  
Hiroyuki Ohno ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Crop Water ◽  
Continental Scale ◽  
Available Water

scholarly journals Study on crop water requirement of field crops under different climatic conditions of Madhya Pradesh

2018 ◽  
Vol 8 (03) ◽  
Author(s):  
Deepika Yadav ◽  
M. K. Awasthi ◽  
R. K. Nema
Keyword(s):  
Irrigation Water ◽  
Reference Evapotranspiration ◽  
Climatic Conditions ◽  
Water Requirement ◽  
Madhya Pradesh ◽  
Crop Water Requirement ◽  
Crop Water ◽  
Field Crops ◽  
Aquacrop Model ◽  
Daily Weather Data

Improved and efficient irrigation water management through precise estimation of crop water requirement has a vital role to play in ensuring food security. However, the crop water requirement data of field crops are not locally available. In view of this, present investigation was aimed at quantifying the crop water requirement of rabi and kharif season crops grown under paired row planting in different agro climatic conditions of Madhya Pradesh. The crop water requirement was calculated based on the already developed crop coefficient and reference evapotranspiration. Daily weather data of 35 years (1979 to 2013) for twenty districts of Madhya Pradesh was collected to determine the reference evapotranspiration using Aquacrop model. The study revealed that the daily ETo increased continuously from 1st SMW to its maximum values during 21st-22nd SMW, thereafter decreased sharply and remains low from 30th to 34th SMW in all selected districts. The highest value of ETo (11.0 mm day-1) was found in Datia at 21st SMW and lowest in Betul i.e. 2.2 mm day-1 at 32nd SMW. The daily water requirement estimates showed that the water requirement of chickpea, wheat and lentil i.e. 1.73 lpd, 0.70 lpd and 0.49 lpd respectively is highest in Jabalpur. Sugarcane has the highest water requirement 13.56 lpd in Narsinghpur during mid season. In all kharif crops cotton has highest water requirement 6.53 lpd in Harda followed by sesame and groundnut i.e. 2.75 lpd and 2.46 lpd respectively in Datia. These results can be used in efficient management of irrigation water under drip irrigation system in selected district of Madhya Pradesh.

scholarly journals Prediction of Rice Water Requirement Using FAO-CROPWAT Model in North Iran under Future Climate Change

2016 ◽  
Author(s):  
Javad Gilanipour ◽  
Bahram Gholizadeh
Keyword(s):  
Irrigation Water ◽  
Meteorological Data ◽  
Crop Coefficient ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Future Climate Change ◽  
Crop Water ◽  
Irrigation Water Requirement ◽  
Water Requirements ◽  
Rice Water

In this paper, Rice water requirement and irrigation water requirement in Amol agro meteorological Station in 2016-2045 are forecasted based on the projected meteorological data of Hadcm3 under A2 scenario. Rice water requirements are estimated by using crop coefficient approach. Reference evapotranspiration are calculated by FAO Penman-Monteith method. Moreover, the irrigation water requirements are simulated by calibrated CROPWAT model using the meteorological parameters. The results show that both crop water requirement and irrigation water requirement present downward trend in the future. In 2016-2045, the rice water requirement and irrigation water requirement decrease by more than 9.9% under A2 scenario, respectively. Furthermore, the precipitation rise may be the main reason for the decrease in crop water requirement, while significant decrease of irrigation water requirement should be attributed to combined action of rising precipitation and a slight increase in temperature.

scholarly journals Climate Change Effect on Irrigation Water Requirement of Wheat and Maize in Northern Part of Bangladesh

2021 ◽  
Vol 5 (1) ◽  
pp. 25-34
Author(s):  
Md Panjarul Haque ◽  
Md Zakir Hossain ◽  
Muhammad Ahsan Ali
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Irrigation Water ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Crop Water ◽  
Irrigation Water Requirement ◽  
Irrigation Water Use ◽  
Change Effect ◽  
Climate Change Effect

Bangladesh is one of the most vulnerable countries for climate change in agricultural water management. A research had been done to assess climate change effects on irrigation water use of wheat and maize in the northern part of Bangladesh. The twenty nine years of data (1990-2018) were analyzed with Mann-Kendall test as well as Sen’s slope for climate change impact and the responsible weather parameters due to climate change were identified with correlation coefficients. The crop water requirement of wheat in Bogura and Rangpur was declining at the rate of 3.3mm and 2.3mm per decade respectively. Net irrigation water requirement of wheat at both Bogura and Rangpur was inclining at the rate of 1mm and 10mm per decade respectively because the effective rainfall of these regions was decreasing at 5mm and 11mm per decade respectively. The crop water requirement of maize for similar districts was increasing at the rate of 3.2mm and 2.5mm per decade respectively although net irrigation water requirement had statistically non-significance for climate change effect. The weather parameter, which was mainly responsible for climatic change in irrigation water requirement, was increasing temperature. Therefore, wheat cultivation might be coped with climate change in the northern part of Bangladesh rather than maize on the basis of irrigation and water management.

scholarly journals Kajian Irigasi Interval 1 Hari di Musim Kemarau pada Sistem Pemanenan Air Limpasan

2019 ◽  
Vol 3 (2) ◽  
pp. 58
Author(s):  
Debby Shafira Chandra ◽  
Nurpilihan Bafdal ◽  
Kharistya Amaru
Keyword(s):  
Irrigation Water ◽  
Sweet Corn ◽  
Dry Season ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Water Harvesting ◽  
Crop Water ◽  
Runoff Water ◽  
Dry Land ◽  
Irrigation Interval

<h1>The water resource problems in dry season at Jatinangor dry land are the imbalance between water needs and water availability. Technology that can help the farmers in dry season is by using a runoff water harvesting system for irrigation use. Irrigation interval is applied so that water use is more efficient. The purposes of this study are to calculate crop water requirement of sweet corn (Zea mays L. Saccharata Sturt) by using Cropwat 8.0 Software and to find out the use of runoff water harvesting systems on one day interval irrigation in the dry season. This research use descriptive analysis method. The results showed that based on Cropwat 8.0, the crop water requirement of sweet corn is 300,6 mm/periode and the runoff water harvesting pond can fulfill the irrigation water needs of sweet corn in the dry season with actual irrigation water requirement of 55,6 m<sup>3</sup> on 221  m<sup>2 </sup>width of area. The productivity yield of sweet corn is 13,25  tons /ha.</h1>

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